Another time, when we came upon a vehicle have difficulty staying it its own lane, we discovered the man driving was also reading a book. He had his hands on 10 and 2 and the hardcover book was resting on the steering wheel between his wrists. He would periodically look up and correct his vehicle's position in the lane.
I have read a lot of good books, but nothing that made me want to read and drive. And with a service like Audible for audiobooks, its just not necessary.